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L.L. Ford's avatar

Okay wow so I have SOOOOOO many thoughts on this.

First of all, fantastic story I absolutely loved the play on memory, extremely clever!

Secondly, I would love to see more tie ins because I'm interested in how the story tracks with Phobia. They're both fantastic stories!

Okay, now onto the fun science stuff. So, the basis of the neurological stuff comes from this concept stated here:

'Mu’en had found some articles on transcranial magnetic stimulation, and speculated that their apparatus had produced some specific EM field pattern which somehow prevented neurons from forming new memories'

So, let's talk about this!

Is it doable: well, kind of! Here's the thing. Transcranial magnetic stimulation is extremely cool. It can disrupt everything from speech to bouts of depression or even act as a treatment for Parkinsons, but memory alteration or erasing? Now that's trickier.

Let's talk about why real quick.

So, it's often said that the hippocampus is where memories are formed. This is kind of true, but not fully true. The hippocampus is responsible for initiation and facilitation of memory, but memory formation happens everywhere in the brain.

It's where the classic neuro phrase "neurons that fire together, wire together" comes into play. Every part of your brain involved in a different perceptive experience fire off together and when you experience that memory they fire again and again and again, solidifying the memory! It's amazing. Now I suppose you could inhibit the hippocampus and that would prevent a lack of memory formation, but that would be extremely targeted without impacting other brain regions. It's often when people who develop memory deficits from stroke tend have other strange discrepancies (my favorite is amusia, the inability to perceive music)

Now, that's where I think memory erasure gets tricky. I think you'd need something extremely precise to target just memory formation without for example: causing entire sensory disruptions, causing someone to black out entirely without any control over their body, or killing them as lower level processes completely shut down.

Now that's not to say it's impossible, but it is to say you'd need a device with some serious precision to only target firing associated with memory formation. Or this might lead to some memory echoes "I can describe this location to you, but I don't know why"

"I remember walking down a fire escape, but I don't know where"

"Oh I've heard your voice somewhere, you sound so familiar..."

Weird things like that

Disclaimer of course: this is speculation and let's be honest, in the world of sci-fi anything is possible after all, right? And I really liked this story!

All my neuro thoughts added to my feeling of "what absolutely mindblowimg powerful item could target the human brain so perfectly? Does it know? Is it doing it on purpose? Was it designed? Is it coincidence and if it is what does that mean about the universe?

Super freaky thoughts

(I am so sorry for this comment being as long as it is. Thanks for giving me the opportunity to think about this and thank you for listening.)

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Bridget Riley's avatar

This is so fascinating! I was hooked from the very beginning. I had to look up what NIM stands for because my first thought was of the book Mrs. Frisby and the Rats of NIMH (definitely different, although there’s an eerie connection in some ways). The mystery behind what exactly was happening and the conflicting motivations between the different characters made for an incredible story!

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